package lock;

import java.util.function.Consumer;

/**
 * @author mubei
 * @date 2021/11/20
 * @description 测试:生产者  消费者 产品  缓冲区
 */
public class TestPC {

    public static void main(String[] args) {
        SynContainer container = new SynContainer();


        new Producer(container).start();
        new Customer(container).start();
    }

}


class Producer extends Thread {
    SynContainer container;

    public Producer(SynContainer container) {
        this.container = container;
    }

    @Override
    public void run() {
        for (int i = 0; i < 100; i++) {
            System.out.println("生产了" + i + "只");
            container.push(new Chicken(i));
        }
    }

}

//消费者
class Customer extends Thread {
    SynContainer container;

    public Customer(SynContainer container) {
        this.container = container;
    }

    @Override
    public void run() {
        for (int i = 0; i < 100; i++) {
            System.out.println("消费了" + container.pop().id);
        }
    }
}

class Chicken {
    int id;//产品编号

    public Chicken(int id) {
        this.id = id;
    }
}

// 缓冲区
class SynContainer {
    //需要一个容器大小
    Chicken[] chickens = new Chicken[10];
    int count = 0;

    // 生产者放入产品
    public synchronized void push(Chicken chicken) {
        //容器满了
        if (count == chickens.length) {
            // 通知消费者消费
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        chickens[count] = chicken;
        count++;
        this.notifyAll();
    }

    //消费者消费
    public synchronized Chicken pop() {
        //判断能否消费
        if (count == 0) {
            //等待生产者生产
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

        count--;
        Chicken chicken = chickens[count];
        this.notifyAll();
        return chicken;

    }


}